Answer:
F(0) = 0
F(1) = 3
F(2) = 2 x F(1) + F(0) = 2 x 3 + 0 = 6
F(3) = 3 x F(2) + F(1) = 3 x 6 + 3 = 21
F(4) = 4 x F(3) + F(2) = 4 x 21 + 6 =90
F(5) = 5 x F(4) + F(3) = 5 x 90 + 21 = 471
Hope this helps!
:)
Answer:
B. $42.60.
Step-by-step explanation:
On the first day price is 43.85 + 2.70 = $46.55
second day price is 46.55 + 2.70 = $49.25
For the next 2 days it goes down $1.10 so the price is $49.25 - 2.20=$47.05
On the last day it loses $4.45 so the final price is $47.05-4.45 = $42.60.
The basic angle for 1/2 is 60°, and cosines are negative in the first and third quadrant.
So, you take 180° - 60° = 120° to get the angle in the first quadrant, and 180° + 60° = 240° to get the angle in the third quadrant.
Since only 120° is an option, the answer is
B.
A nine can go into a 20 two whole times. After that, there's still
some room left in the 20, but it's only enough room for a 2.
